This week, dotCloud, Amazon Web Services, Google App Engine and CloudFoundry announced a variety of improvements from improved Rails support to the announcement of the stable version of Google's Go language.

Google App Engine

Google App Engine 1.6.4 Release includes some system wide changes including datastore backup to Google Cloud Storage and a Memcache viewer.

Go Version 1 Released on App EngineGoogle now provides a stable version of the Go language/libraries/tools with the release of Google App Engine SDK for the Go runtime. This provides Go APIs for services like Blobstore, Datastore, Memcache, etc.

Cloud Foundry

Improved Ruby Support for Ruby AppsCloudFoundry can now support Rails 3.1 and 3.2 apps as well as. . .- JRuby- Auto-locate initialization of Rails/Sinatra apps on Postgres, MySQL, Redis, Mongo or RabbitMQ- Rails console in the VMC command line client- Rack applications (http://rack.rubyforge.org/doc/)